Onist 2mg Oral Drops is a medicine given to children to help treat nausea and vomiting. It is mainly given to treat nausea and vomiting associated with surgery, chemotherapy, radiotherapy, and stomach/intestinal infection. It also helps treat vomiting that is caused as a side effect of medicines like painkillers.

Onist 2mg Oral Drops may be given before or after meals. To control vomiting caused due to chemotherapy, give this medicine to your child 30 minutes before the procedure. Give it 1 to 2 hours before a radiotherapy session and 1 hour before surgery to prevent your child from vomiting post these procedures. If your child expels out the medicine within 30 minutes of the intake, help your child calm down and repeat the dose. Do not double the dose if it is already time for the next dose.

Onist 2mg Oral Drops may cause some temporary side effects such as headache, constipation, diarrhea, and fatigue. These side effects usually subside once your child’s body adapts to the medicine. In case these side effects persist or become bothersome, do reach out to the doctor on a priority basis.

Let the doctor know about all the medicines your child is taking, including painkillers, antibiotics, or medicines taken to treat depression. Also, inform the doctor if your child has a history of liver problems, kidney malfunction, blockage in the gastrointestinal tract, heart problems, or allergies to any medicine, its ingredients, or a food product. This information is very important for dose alterations and for planning your child’s overall treatment.

Uses of Onist Oral Drops

Benefits of Onist Oral Drops

In Treatment of Nausea

Chemotherapy, radiotherapy, major surgeries, and abdominal infection put your child at risk of developing severe nausea and vomiting. It happens due to the release of a chemical called serotonin. Onist 2mg Oral Drops acts by blocking the effect of this chemical and prevents nausea and vomiting. It also helps your child to recover more comfortably from these treatments. Stick to the prescribed dose, time, and way, and do not increase or decrease the dose by yourself without consulting your child’s doctor as it may result in side effects.

Side effects of Onist Oral Drops

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Common side effects of Onist

Headache
Constipation
Diarrhea
Fatigue

How to use Onist Oral Drops

Take this medicine in the dose and duration as advised by your doctor. Check the label for directions before use. Measure it with a marked dropper and take it as directed. Onist 2mg Oral Drops may be taken with or without food, but it is better to take it at a fixed time.

How Onist Oral Drops works

During radiotherapy, chemotherapy, abdominal infection, or any major surgeries, the dead cells in the body start releasing a chemical called serotonin directly into the blood. Later, this stimulates special centers in the body that are responsible for inducing vomiting in your child. Giving Onist 2mg Oral Drops just before the procedure helps block the effect of this chemical on vomiting centers of the brain and prevents vomiting.

Safety advice

Alcohol

SAFE

Consuming alcohol with Onist 2mg Oral Drops does not cause any harmful side effects.

Pregnancy

SAFE IF PRESCRIBED

Onist 2mg Oral Drops is generally considered safe to use during pregnancy. Animal studies have shown low or no adverse effects to the developing baby; however, there are limited human studies.

Breast feeding

SAFE IF PRESCRIBED

Onist 2mg Oral Drops is probably safe to use during breastfeeding. Limited human data suggests that the drug does not represent any significant risk to the baby.

Driving

SAFE

Onist 2mg Oral Drops does not usually affect your ability to drive.

Kidney

SAFE IF PRESCRIBED

Onist 2mg Oral Drops is safe to use in patients with kidney disease. No dose adjustment of Onist 2mg Oral Drops is recommended.

Liver

CAUTION

Onist 2mg Oral Drops should be used with caution in patients with liver disease. Dose adjustment of Onist 2mg Oral Drops may be needed. Please consult your doctor.

What if you forget to take Onist Oral Drops?

Do not panic. Give the missed dose as soon as you remember. However, you must skip the missed dose if it’s almost time for the next dose. Do not give a double dose and follow the prescribed dosing schedule.

All substitutes

For informational purposes only. Consult a doctor before taking any medicines.

Onist 2mg Oral Drops

₹34.4/Oral Drops

Zyset 2mg Oral Drops

Zydus Healthcare Limited

₹34.16/oral drops

4% cheaper

Onden 2mg Oral Drops

Welgenic Pharma

₹35/oral drops

1% cheaper

Vomitoff 2mg Oral Drops

Accretion Pharmaceuticals

₹33/oral drops

7% cheaper

Vomease 2mg Oral Drops

Iatric Pharmaceuticals

₹34/oral drops

4% cheaper

M On 2mg Oral Drops

Abony Healthcare Limited

₹40/oral drops

13% costlier

View all substitutes

Quick tips

Onist 2mg Oral Drops effectively controls nausea and bouts of vomiting reflex in children undergoing chemotherapy or radiotherapy sessions.
It is fast-acting and starts working within 30 minutes.
Practice self-care measures:
1. Give plenty of fluids to your child to avoid dehydration
2. Avoid giving fried and spicy food or heavy meals to your child.
3. Ensure that your child eats slowly and in small proportions.

Fact Box

Chemical Class

Carbazole Derivative

Habit Forming

Therapeutic Class

GASTRO INTESTINAL

Action Class

Serotonin antagonists (5-HT3 antagonists)

Interaction with drugs

Taking Onist with any of the following medicines can modify the effect of either of them and cause some undesirable side effects

Codeine

Brand(s): Acicod, Montokuf, Codine Sulphate

Serious

Dextropropoxyphene

Brand(s): Parvodex

Serious

Nalbuphine

Brand(s): Nalfy, Nacphin, Ruffy

Serious

Pentazocine

Brand(s): Wintal

Serious

View all interactions

Patient concerns

What is side effect of primolut n

Dr. Megha Tuli

Obstetrics and Gynaecology

Bloating, pain abdomen, nausea, vomiting etc are common side of Primolut.

Vomiting, nausea neck pain backside

Dr. Vijay Verma

ENT

Neck pain may be due to nausea NAD vomiting Visit physician for the same

Vomiting nausea problem and fever

Dr. Gopal Bansilal Samdani

Paediatrics

Monitor temperature of Patient. If Patient has fever place a cool, damp washcloth on your child's forehead. Give your Patient a lukewarm tub bath or a sponge bath. Give a sponge bath as follows: - ? Use lukewarm water [90?F (32.2?C) to 95?F (35?C)]. Do not use cold water, ice, or rubbing alcohol, which will lower the child's body temperature too quickly. ? Sponge for 20 to 30 minutes. ? Stop if the child starts to shiver. If your child doesn't like the sponge bath or doesn't feel better after the bath, there is no need to give another one. You can use paracetamol also along with above measures to control fever till you consult Dr. will determine underlying disorders by clinical examination which range from mild conditions to the most serious of bacterial and viral illnesses and will prescribe medicines accordingly. Advice given without doing clinical examination can be imperfect or some time harmful to patient.

FAQs

Q. What is Onist 2mg Oral Drops used for?

Onist 2mg Oral Drops is generally given before any major surgery or before chemotherapy and radiotherapy sessions. In case your child is about to undergo any of the above procedures, your child’s doctor may ask you to give Onist 2mg Oral Drops to your child to prevent vomiting post-procedure. Apart from this, Onist 2mg Oral Drops is also found useful in treating vomiting caused due to diseases of the stomach. In such a case, your child’s doctor may prescribe giving Onist 2mg Oral Drops to your child for a few days. Stick to the dose for best results.

Q. What if my child takes too much Onist 2mg Oral Drops?

Onist 2mg Oral Drops is unlikely to cause harm if you give an extra dose by mistake. However, you must still speak to your child’s doctor immediately. Sometimes, excessive intake of Onist 2mg Oral Drops can cause some serious side effects like excess sleepiness, agitation, rapid heartbeat, hypertension, flushing, dilated pupils, sweating, involuntary muscle jerk, uncontrolled eye movements, overactive reflexes, and seizures. These symptoms are collectively known as serotonin syndrome. If any of these appear, consult the doctor without any delay.

Q. How should Onist 2mg Oral Drops be stored?

Onist 2mg Oral Drops should be stored at room temperature, in a dry place, away from direct heat and light. Also, keep all the medicines out of the reach and sight of children to avoid any accidental intake.

Q. What all medicines should my child avoid while taking Onist 2mg Oral Drops?

Usually, it is advised not to give Onist 2mg Oral Drops along with antidepressant medicines, apomorphine, anti-migraine medicines, painkillers, heart medicines, and antibiotics like linezolid. But, it is ideal to speak to your child’s doctor before coming to any conclusion. So, narrate your child’s complete medical history to your child’s doctor and follow their advice strictly.

Q. In what conditions do I need to call my child’s doctor right away?

Call your child’s doctor immediately if your child develops symptoms of serotonin syndrome like irregular heartbeat, green-colored vomiting, inability to pass wind, pale skin and eyes, dark-colored urine, restlessness, and insomnia.

Q. My child is having a migraine and is on medication. Can I give Onist 2mg Oral Drops along with it?

Avoid combining Onist 2mg Oral Drops with such medicines because concomitant use of Onist 2mg Oral Drops with medicines meant to treat depression or migraine results in serotonin syndrome. Consult your child’s doctor before giving any medicine to your child.

Show less

Top Physicians

4.4 ★

4.4 ★

MBBS, MD, Fellowship, Fellowship

5 ★

Dr. Suman Kirti

MBBS, MD, Fellowship, Fellowship

4.3 ★

Dr. Pooja Khosla

MBBS, MD, Fellowship

4.5 ★

Want to share the information?

Disclaimer:

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

References

Ondansetron hydrochloride [FDA Label]. Research Triangle Park, NC: GlaxoSmithKline; 2016. [Accessed 04 Jan. 2020] (online) Available from:
Children’s Minnesota. Patient & Family Education Materials: Ondansetron (Zofran). [Accessed 04 Jan. 2020] (online) Available from:

Marketer details

Name: Venistro Biotech

Address: SHOP NO-1, 1st FLOOR, GAURAV PARK, NEAR RAMA FILLING STATION, MAHESH NAGAR, AMBALA CANTT-133001 (HARYANA) India.

Country of origin: India

The list of available options shown with the same composition has been prepared upon the advice of registered medical practitioners, pharmacists affiliated with TATA 1MG. TATA 1MG does not promote any pharmaceutical product of any particular company, and all recommendations are based on the medical opinion, advisories from specialist medical and pharmaceutical professionals.